Swaging-machine.



T. A. EDISON.

SWAGING MACHINE.

APPLICATION FILED JUNE 29. 1911.

1 292.277. Patented Jan. 21, 1919.

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UNIT STATES PAT]:

FICE

THOMAS A. EDISON, OF WEST ORANGE, NEW JERSEY, ASSIGNOR TO NEW JERSEYPATENT COMPANY, OF WEST ORANGE, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SWAGING-MACHINE.

Specification of Letters Patent.

Patented J an. 21, 1919.-

To all whom it may concern Be it known that I, THOMAS A. EDISON, acitizen of the United States, and a resident of West Orange, Essexcounty, New Jersey, haveinvented certain new and useful Improvements inswaging-Machines, of which the following is a description.

My invention relates to swagingmachines and more particularly to animproved apparatus for fastening an article, such as a diamond splint,within a holder or mounting therefor.

Considerable difliculty has heretofore been experienced in themanufacture of styli for reproducing phonograph records, in so securingthe diamond splint or other stylus within the holder therefor that thesame will not work loose, and the principal object of-my invention is toprovide a simple and comparatively inexpensive machine whereby thisobjection will be obviated and whereby the fastening of the diamondsplint or other stylus within its holder may be quickly, effectively andeconomically accomplished. It is to be understood, of course, that myimproved machine is not limited to this use, as the same is adapted toeffectively operate on other work.

In its preferred form, the machine comprises means for effecting theheating of the work, preferably by an electric heating current, so as tosoften the same, and means for swaging the heated and softened work. Inthe case of phonograph styli, the holder of the stylus is first heatedand softened and is then swaged so as to force the material of theholder about and into close engagement with the stylus so that thelatter will be securely and permanently fastened within the holder.

Other objects and features of my invention reside in the constructionand combinw tion of parts herein-after more fully de-- line diamondsplint .or other stylus mounted therein, before-the holder is subjectedto the action of my machine; and

Fig. 5 is a view similar to Fig. 3 showing the holder and stylus afterthe holder has been heated and swaged.

Referring to the drawing, reference character 1 represents the frame orstandard of my improved machine, this frame preferably being made ofcast iron and comprising two spaced legs 2 connected at the top by anintegrally formed cross piece 3. The standard 1 is preferably secured,as by means of bolts 45 passing through the lower flanged ends of legs2, ma wooden table or bench 5. A vertical rod 6 is slidably orreciprocably mounted in the frame or standard 1, this rod extendingthrough openings in the top cross piece 3 and the top of the table orbench 5. The lower end of the rod 6 is pivotally connected, as by meansof a link 7 to a foot treadle 8 pivoted at one end 9 to a fixed support,such as the fioor. The rod 6 constitutes a work holder, the upper endportion thereof being formed with an enlargement 12 provided with anaxially extending socket member 10. When the machine is to be used forfastening phonograph styli in their holders, the socket member 10 ispreferably provided with a vertical cylindrical recess, the bottom ofwhich is located only a small distance below the upper end of rod 6, sothat when a cylindrical stylus mounting or holder, such as shown at 11in Figs. 4 and 5, is disposed therein, a considerable portion of theholder extends above the rod 6. The upper enlarged portion 12 of rod 6is formed with a plurality of radially disposed equi-spaced slots 13.Four such slots 13 are shown in the construction illustrated, theadjacent slots being disposed at angles of ninety degrees with respectto each other. Bell crank levers 14: are respectively mounted in theslots 13 for pivotal movement about horizontal axes, as by means of pins15. The upper horizontal arm of each of the bell crank levers isbifurcated and has removably mounted in the bifurca-tion 16 thereof, asby means of screws 17 a hardened steel swaging member 18. The inner endof each of the swaging members 18 is beveled to provide the same with anarrow vertical swaging surface 19. The lower vertical arms of the bellcrank levers 14 are respectively provided with rolls 2O rotatablymounted on pins 21 secured to the lower end of the bell crank levers. Amember 22, preferably in the shape of the frustum of a cone, is mountedon the top of the cross piece 3 and is secured thereto as by means of acentrally disposed and downwardly extendin boss 23, preferablyintegrally formed t erewith, which fits tlglitly within the opening inthe cross piece 3 through which the rod 6 extends. The member 22 isprovided with a central vertlcal passageway or opening through which therod 6 extends. A- spiral spring 24 surrounds the rod 6'bet'ween the topof the member 22 and the enlarged upper portion 12 of the rod, andconstantly tends to hold the rod elevated in the position shown in Fig.1, the upward movement of the rod being limited by means of a collar 25secured thereto engaging the lower surface of the cross piece 3 ofstandard 1.

The member 22 is provided with four vertically extending grooves 26which form guideways or tracks for the rolls 20 respectively. When therod 6 is in its elevated position. as shown in Fig. 1, the rolls 20 aredisposed in the upper end portions of grooves 26. The lower verticalarms of the bell crank levers 14 are embraced by a coiled spring 27,which is held in place on said levers as by means of one or more screws28. Reference character 29 represents an insulated conductor pluggedinto the enlarged upper end portion 12 of the rod 6 and connected to oneside of an electric heating circuit.

Reference character 30 represents a vertically extending bracket securedat its lower end to the cross piece 3 of the standard 1, as by means ofone or more bolts 31. The bracket 30 is suitably insulated from thestandard 1 as by means of insulation 32, and the upper end thereof isprovided with a hearing portion 33 in vertical alinement with the rod 6.A cylindrical rod 34 of conducting material, preferably copper, isslidably disposed in the bearing portion 33 and is formed at its lowerend portion with a conical portion 35, the lower end of which conicalportion is adapted to engage and react with the stylus mounting or otherwork supported in the upper end portion of is very easy to manipulate.

position shown in Fig. 1. An insulating conductor 38 is plugged into therod 34 and is connected to the other side of the heating circuit. Theupper end of rod 34 is provided with a knob or handle 39 whereby the rodmay be manually depressed against the action of spring 36. p

The operation of my swaging machine is as follows :The work to be actedupon is first placed in the socket 10. In the drawing this work is shownas a cylindrical stylus holder or mounting 11 having an axiallyextending recess 40 in which a diamond splint 41 is loosely mounted. Itwill be seen that all that portion of the stylus mounting 11 in whichthe recess 40 is formed projects above the rod 6. The copper rod 34 isnow depressed against the action of spring 36 until the lower end of theconical portion 35 thereof engages the stylus mounting 11 or other worksupported in the upper end portion of rod 6. This closes the electricheating circuit through the stylus mounting or other work, and quicklybrings the latter up to a red and almost white heat and thereby rendersthe same soft. Pressure on the knob 39 is then removed, whereupon thespring 36 acts to elevate the rod 34 to the position shown in Fig. 1 tothereby break the electric heating circuit. The foot treadle 8 is thenimmediately depressed, thereby pulling the rod 6 down against the actionof springs 24 and 27 In the downward movement of the rod 6, the lowervertical arms of the bell crank levers 14 are forced outwardly by theaction of the inclined bottoms of the grooves 26 in the member 22 onrolls 20, and the upper horizontal arms of the bell crank levers 14 areaccordingly moved inwardly toward the portion of the work or stylusmounting 11 which projects above the rod 6. The inward movement of theupper horizontal arms of the bell crank levers 14 brings the flatvertical swaging surfaces 19 of the swaging members 18 into engagementwith the highly heated and softened mounting or holder 11 and therebyforces the material thereof about and into close engagement with thediamond splint or stylus 41', as shown in Fig. 5. Upon removing thepressure from the foot treadle 8, the springs 24 and 27 act to quicklyreturn the rod 6 to the raised or elevated position shown in Fig. 1.. Itwill be obvious that spring 27 constitutes unitary means tending to move the lovers 14 and thereby the swaging members 18 to inoperativeposition and to maintain rod 6 in its elevated flposition, and that ifthis springis made su cientl strong, the coiled spring 24 may be omitteI prefer, however, to employ both of the 5 rings 24 and 27.

The machine a ove described has been found to be very eflicient in oeration and his machine also has. a high capacity, as it takes but a fewseconds to heat and swage a stylus mounting as described above. j

While I have illustrated the preferred form of my improved machine, itis to be understood that the same is subject to various changes andmodifications without any departure from the spirit of my invention andthe scope of the appended claims.

Having now described my invention, what I claim as new and. desire toprotect by Letters Patent is as follows:

1. In a machine of the class described, a movably mounted work support,means for effecting the heating of work carried by said support, and adevice for automatically effecting the swaging of said work by themovement of said support away from said means substantially asdescribed.

2. In a machine of the class described, a movably mounted work support,and means movable with said support for automatically subjecting workcarried by said support to aswaging action by the movement of saidsupport substantially as described.

3. In a machine of the class described, a work support, means operableto efiect the heating of work carried by said support, and meansoperable independently of said last means to effect the, swaging of saidwork, substantially as described.

4. In a machine of the class described, a work support, means operableto effect the passage of an electric heating current through workcarried by said support. and means operable independently of said lastmeans to effect the swaging of said work, substantially as described.

5. In a machine of the class described, a work support, meanscofiperative with the said support and operable to eflect the heating ofthe work carried by the support. and means operable independently ofsaid last means and comprising relatively movable devices adapted bytheir relative movement to efiect the swaging of the work carried by thesupport. substantially as described.

6. In a machine of the class described. a work support, one or moremembers movable to efi'ect the swaging of work carried by the support, adevice between which and the work support there is a relative movement,relative movement of said support and device being adapted to effectoperative movement of said swaging members, and unitary means constantlytending to hold said swaging members in inoperative position and saidsupport and device in a givenrelative position, substantially asdescribed.

' 7. In a machine of the class described, a work support, a devicebetween which and the work support there is a relative move ment, andone or more membersmovable relatively to said support for swagmg workwork support, a device between which and the work support there is arelative movement, one or more members movable relatively to saidsupport for swaging work carried thereby, said device being adapted toautomatically effect the operation of said members upon relativemovement of said support and device in one direction, and meansconstantly tending to efi'ect relative movement of said support anddevice in the opposite direction, substantially as de scribed.

9. In a machine of the class described, a work support, a device movablerelatively thereto, one or more members movable relatively to saidsupport for swaging work carried thereby, said device being adapted toautomatically effect the operation of said members upon relativemovement of said support and device in one direction, and unitary meansconstantly tending to effect relative movement of said support anddevice in the opposite direction and to render said members inoperative,substantially as described.

10. In a machine of the class described, a work support, a devicemovable relatively thereto, swaging members mounted on said support tomove toward the work carried by the latter, said device being adapted toeffect such movement of said members upon relative movement of saidsupport and device in one direction, and means constantly tending toefiect relative movement of such support and device in the oppositedirection, substantially as described.

11. In a machine of the class described, a work support, a devicemovable relatively thereto in a direction axially of said support, andone or more levers, each lever being pivoted to said support and havingone arm provided with a swaging device and movable toward and away fromwork carried by the support by pivotal movement of the lever, saiddevice having an inclined surface coacting with the other arm oi thelever to automatically efiect pivotal move member, and means whereby themovement of said support away from said member automatically effects theswaging of the work carried thereby, substantially as described.

13. In a machine of the class described, a movably mounted work support,means for efi'ecting the heating of work carried by said support, and adevice se arate from said means for automatically e ecting the swagingof said Work by the movement of said support in one direction,substantially as described.

L4. In a machine of the class described, a movably mounted work supportbiased to a predetermined position, and means automatically brought intoengagement with and subjecting the work carried by said support to aswaging'aiitioifby the movement of said support awa from said position,substantially as described.

15. In a machine of the class described, means for eflecting the heatingof work in the machine, and means for efi'ecting the swaging of saidwork by relative movement of the work and heating means away from eachother, substantially as described.

16. In a machine of the class described,

means for efiecting the heating of work in the machine, and means foreifecting the swaging of said work by movement of the latter bodily inone direction, substantially as described. 7

17. In a machine of the class described,

means tending to maintain work mounted in the machine in a predeterminedposition, and means subjecting said work to a swaging action uponmovement of the work away from said position, substantially asdescribed.

18. In a machine of the class described, a work support, means forefiecting the heating of Work carried by said support and between whichand the Work supoprt there is relative movement, and means for eifectingthe swagingof said work by relative movement of the work support andheating means away from each other, substantially as described.

This specification signed and witnessed this 26th day of June, 1917.

THUS. A. EDISON.

Witnesses WILLIAM A. DY, FREDERICK BAOHMANN.

